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linux yumÃüÁîÏê½â

Ò». yumÊÇʲô
yum = Yellow dog Updater, Modified
Ö÷Òª¹¦ÄÜÊǸü·½±ãµÄÌí¼Ó/ɾ³ý/¸üÐÂRPM°ü.
ËüÄÜ×Ô¶¯½â¾ö°üµÄÒÐÀµÐÔÎÊÌâ.
ËüÄܱãÓÚ¹ÜÀí´óÁ¿ÏµÍ³µÄ¸üÐÂÎÊÌâ
×¢:ΪʲôҪʹÓÃyum¶ø²»ÓÃapt,×î¼òµ¥µÄÔ­Òò,Fedora×Ô´ø

¶þ. yumÌØµã
*¿ÉÒÔͬʱÅäÖöà¸ö×ÊÔ´¿â(Repository)
*¼ò½àµÄÅäÖÃÎļþ(/etc/yum.conf)
*×Ô¶¯½â¾öÔö¼Ó»òɾ³ýrpm°üʱÓöµ½µÄÒÐÀµÐÔÎÊÌâ
*ʹÓ÷½±ã
*±£³ÖÓëRPMÊý¾Ý¿âµÄÒ»ÖÂÐÔ

Èý. yum°²×°
Fedora×Ô´ø
#rpm -ivh yum-2.0.4-2.noarch.rpm

ËÄ. yumÅäÖÃ
×¢:Ð޸ĺÍÔö¼ÓÅäÖÃÎļþÖеÄ×ÊÔ´¿â,¼Ó¿ìÏÂÔØËٶȺÍÓµÓиü¶à¿É¸üеÄrpm°ü
½«/etc/yum.confµÄÄÚÈÝÈ«²¿Ì滻Ϊ
[main]
cachedir=/var/cache/yum
debuglevel=2
logfile=/var/log/yum.log
pkgpolicy=newest
distroverpkg=fedora-release
tolerant=1
exactarch=1

[fedora-us-1]
name=Fedora Core 1 -- Fedora US mirror

baseurl=ftp://mirrors.kernel.org/fedora.us/fedora/fedora/1/i386/yum/os

[fedora-us-1-updates]
name=Fedora Core 1 updates -- Fedora US mirror

baseurl=ftp://mirrors.kernel.org/fedora.us/fedora/fedora/1/i386/yum/updates


[fedora-us-1-stable]
name=Fedora Linux (stable) for Fedora Core 1 -- Fedora US
mirror

baseurl=ftp://mirrors.kernel.org/fedora.us/fedora/fedora/1/i386/yum/stable


[freshrpms]
name=Fedora Linux $releasever - $basearch - freshrpms

baseurl=http://ayo.freshrpms.net/fedora/linux/$releasever/$basearch/freshrpms



Îå. yumÓ¦ÓÃ

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Linux iptableÎĵµ

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ÓÃiptables -ADC À´Ö¸¶¨Á´µÄ¹æ
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iptables - [RI] chain rule num rule-specification[option]
ÓÃiptables - RI ͨ¹ý¹æÔòµÄ˳ÐòÖ¸¶¨
iptables -D chain rule num[option]
ɾ³ýÖ¸¶¨¹æÔò
iptables -[LFZ] [chain][option]
ÓÃiptables -LFZ Á´Ãû [Ñ¡Ïî]
iptables -[NX] chain
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